Microsatellites reveal a strong subdivision of genetic structure in Chinese populations of the mite Tetranychus urticae Koch (Acari: Tetranychidae).

BMC Genetics
Jing-Tao SunXiao-Yue Hong

Abstract

Two colour forms of the two-spotted spider mite (Tetranychus urticae Koch) coexist in China: a red (carmine) form, which is considered to be native and a green form which is considered to be invasive. The population genetic diversity and population genetic structure of this organism were unclear in China, and there is a controversy over whether they constitute distinct species. To address these issues, we genotyped a total of 1,055 individuals from 18 red populations and 7 green populations in China using eight microsatellite loci. We identified 109 alleles. We found a highly significant genetic differentiation among the 25 populations (global FST = 0.506, global FST {ENA} = 0.473) and a low genetic diversity in each population. In addition, genetic diversity of the red form mites was found to be higher than the green form. Pearson correlations between statistics of variation (AR and HE) and geographic coordinates (latitude and longitude) showed that the genetic diversity of the red form was correlated with latitude. Using Bayesian clustering, we divided the Chinese mite populations into five clades which were well congruent with their geographic distributions. Spider mites possess low levels of genetic diversity, limit gene fl...Continue Reading

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Citations

Feb 7, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Qi-Fang GengShu-Qing An
May 17, 2019·Experimental & Applied Acarology·Peng-Yu JinXiao-Yue Hong
Mar 17, 2018·Journal of Economic Entomology·Neshat GolikhajehMarzieh Asadi Aghbolaghi
Dec 7, 2019·BMC Evolutionary Biology·Peng-Yu JinXiao-Yue Hong
Oct 9, 2020·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Kiran S KumarSanil George
Jul 11, 2021·Communications Biology·Ernesto Villacis-PerezThomas Van Leeuwen

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Datasets Mentioned

BETA
GU068508

Methods Mentioned

BETA
deacylation
electrophoresis
PCR
genotyping

Software Mentioned

MICRO
SPSS
Primer
GenALEX
GENDIST
TREEVIEW
CHECKER
STRUCTURE
PHYLIP3
Fraglys

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